Notice bibliographique
Résumé
Interest in growing native plants has been increasing in recent years. In an effort to better understand some valuable native plants for use in the Northeast, the propagation and taxonomy of several plants with potential as landscape plants were explored. In an effort to make more propagation information available to nursery growers and plant propagators, commercially feasible propagation methods were researched. Asarum canadense, Canadian wild ginger, seed is typically difficult to germinate; so warm stratification and gibberellic acid were tested to determine if this process would increase germination. Warm stratification mimics conditions to which the seed would typically be exposed in nature, and gibberellic acid is a plant hormone that can substitute for cold stratification and help increase gemination of seeds. After one, two, or three months in warm stratification; seed was soaked in gibberellic acid for 24 hours and placed in petri dishes. None of the seeds germinated, this could be the result of a double dormancy in the seed. Comptonia peregrina, sweet fern, is a native shrub often used in landscapes and erosion control. Because seed is difficult to germinate and stem cuttings are not successhl, root cuttings are the commonly used propagation method. Root cuttings were tested for their reaction to cold stratification length and temperature. The cuttings did respond to stratification length and temperature, with one month of cold stratification we achieved 100% rooting. In addition to rooting at higher percentages, cuttings treated with consistent temperatures of 3-4°C also rooted sooner, had more shoots per cell, and had longer shoots. , Two species of dogwood, Cornus alternifolia and C. rugosa, were tested for their reaction to different treatments of stem cuttings. C. alternifolia roots readily from softwood cuttings, but rooted cuttings have some difficulty overwintering. Extended photoperiods did not increase rooting percentages, suggesting that photoperiods do not effect rooting. C. rugosa is a relatively unknown in the nursery trade, so research was conducted to determine optimum propagation methods. Softwood cuttings were taken, but the leaves quickly turned brown and the cuttings died. Hardwood cuttings rooted at much higher percentages, with supplemental lighting actually being detrimental to rooting. Gaultheria procumbens, wintergreen, is a native woody plant with many potential uses in the landscape. Seed is typically hard to germinate, so seed was soaked for 24 hours in gibberellic acid to determine if germination percentages could be increased. Light conditions (ambient, extended, and dark) were also tested. Gibberellic acid did significantly increase percentages and ambient light conditions were found to be best for germination. Viburnum lantanoides and V. nudum var. cassinoides were tested for their reaction to treatments of softwood stem cuttings, rooting hormones, and extended photoperiods. K lantanoides rooted readily with 1000 ppm K-IBA treatment and light
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».